Linear-predictive data extrapolation for narrow-band spectral estimation
Article Abstract:
An analysis of a hybrid Fourier-Burg narrow-band spectral estimation algorithm developed in 1973 by T.J. Ulrych and others reveals several advantages over the respective Fourier and Burg MEM estimator algorithms. The hybrid Fourier-Burg method involves data extrapolation and offers such advantages as: superior resolution compared to conventional Fourier, less sensitivity to model order than Burg MEM, frequency estimation variance superior to Burg and approaching conventional Fourier for low signal-to-noise ratios, and improved detection of weak signals comparable to windowed Fourier. Both simulations and real data validate these advantages.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
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Three-dimensional computer model of electric fields in internal defibrillation
Article Abstract:
A simplified three-dimensional computer model of the electric fields produced by internal defibrillation electrodes is presented. The model helps determine strategies for delivering shocks to the heart. It uses a finite analysis technique to calculate energy and current density distributions in patch-patch, catheter-patch, and catheter-catheter electrode configurations; supplies detailed information concerning electrode size, placement, and conductivity; and validates many experimental observations and hypotheses.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
User Contributions:
Comment about this article or add new information about this topic:
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